Car-wheel



(No Medal.)

E. J. KELLY.

GAR WHEEL.

Patented NOV. 20, 1883.

I'll-Ill UNITED STATES PATENT OFEicE.

EDWARD J. KELLY, OF MONONGAHELA CITY, PENNSYLVANIA.

CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 288,817, dated November20, 1883.

Application filed August 2, 1883. (N0 model) To all whom it mayconcern.-

Be it known that I, EDW'ARD J. KELLY, of Monongahela City, in the countyof Washington and State of Pennsylvania, have invented certain new anduseful Improvements in Cast \Vheels; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention,which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompanying drawings,which form a part of this specification, in which- Figure 1 is alongitudinal section, and Fig. 2 a transverse section on line a: x, ofmy invention as applied'to, a pit-car wheel.

My invention has relation to wheels of that class which are loose uponand revolve upon their axle or shaft, and consequently require constantand ample lubrication.

My invention consists in a wheel wherein the hub is formed as anintegral casting with the spokes thereof, in forming said hub with aninterior chamber extending partially up into the spokes, and havingcommunication with the axle-opening by means of a diagonal slit in asleeve which forms the bearing for said axle. 7

Referring to the accompanying drawings, A represents the rim ofthewheel, BBthe spokes, and C the hub. The hub G is cast in one piecewith the spokes and rim, and is 'pro-. vided with the usual opening inits center for the reception of the axle, as shown, and designated bythe letter a. Said hub is formed, during the process of casting, with acentral chamber, D, which surrounds the hub-opening a and receives thelubricating-fluid. The

chamber I) follows the contour of the hub,

and extends some distance into the spokes B B, forming recesses orpockets b b therein. Openings or holes 0 c in the outside wall ofchamber D serve for the admission of the lubricating-fluid to saidchamber. These openings or holes are in a line drawn from the center ofthe axle-opening through the spokes and the pockets Z2 11. Within thechamber D,

on each side, and surrounding the axle-opening a, are two annularflanges, e e, and upon the outside of said opening are flanges c 6.These flanges are cast integral with the hub, and serve as a sleeve, inwhich the axle turns. The'flanges c e form the inner wall of chamber D,and their inner edges are oppositely inclined, so as to form a diagonalslit, f, between them, through which the lubricant in chamber 0 hasaccess to the axle. My object in making the slit f diagonal is twofold.It prevents the formation of a ring or burr on the axle, which mustinevitably occur if said slit were at right angles to the axle, and itserves to distribute the lubricating-fluid over a greater surface than aslit cutor formed in the manner last mentioned.

It will be observed that the flanges e e taper toward their edges, theobject of said taper being to facilitate the removal of the sand coreafter casting, and to remove any particles of metal which may fallthrough the slit f when the central opening, a, is being cut out.

The operation of my invention is as follows: When it is desired tolubricate the axle, the fluid proper to the purpose ispoured into thechamber D through the opening 0, which is uppermost, until it has filledthe pocket I) below. Upon the wheel beginning to revolve the oil iscarried around and a portion of it falls upon the axle through the slitf. The oil is distributed over a considerable portion of the axle byreason of the diagonal slit, and an even wearing of the surface of thesame is assured. When the wheel stops, the unused oil in chamber Dgathers in the lowest pocket, b, to be again distributed, as before.Should any grit, sand, or other material gather in chamber D, the wheelmay be removed from its axle and the dirt shaken out through the slit f.

I am aware it is not broadly new to con struct a car-wheel with an oilcavity or cavities around the hub, with an opening therefrom through thewall of the hub for admitting oil to the spindle or axle; but myinvention embraces the novel idea of an inclined or oblique channelwhich has its inlets on dif ferent circmnierential lines, and thereforeof

